United States              Solid Waste and           EPA530-F-02-008
                Environmental Protection    Emergency Response            February 2002
                Agency                      (5305W)              www.epa.gov/osw
                Office of Solid Waste

v>EPA    Environmental

                 Fact   Sheet	

                Interim Emission Standards for
                1999  Hazardous Waste Combustor  Rule
                   The Environmental Protection Agency (EPA) is publishing interim air emission
                standards and revised compliance provisions for hazardous waste combustion sources
                as a result of a consensus settlement of issues among the environmental and
                regulated communities and EPA. The Agency believes that these interim standards will
                better protect human health and the environment than if the standards were vacated by
                the Court. These interim standards leave critical parts of the 1999 rule intact, make
                compliance easier for the regulated community and the implementing states, and
                achieve most of its emission reductions.
        On September 30, 1999, EPA issued standards to control emissions of hazardous air
        pollutants from incinerators, cement kilns, and lightweight aggregate kilns that burn
        hazardous wastes. These standards were based on the performance of Maximum
        Achievable Control Technology (MACT), and implemented section 112(d) of the Clean Air
  Act. The rule regulated emissions of dioxins and furans, mercury, and other toxic metals, among
  other hazardous air pollutants. A number of parties, representing both industrial and environmental
  communities, requested judicial review of this rule, and challenged its emission standards and
  several implementation provisions.

     On July 24, 2001, the United States Court of Appeals for the District of Columbia Circuit (the
  Court) vacated the emission standards. When it made its decision, the Court invited any of the
  parties to request, either that the current standards remain intact, or that EPA be allowed time to
  publish interim standards. On October 19, 2001, EPA and the other parties jointly asked the Court
  for additional time to develop interim standards, and the Court granted this request. These
  consensus revisions to the 1999 emission standards and compliance provisions are the product of
  that effort. The Agency believes that these interim standards will better protect human health and
  the environment than if the standards had been vacated by the Court. These interim standards
  preserve the most critical elements of the original standards, guaranteeing that most of the emission
  reductions will be achieved.  It also avoids the need to develop  requirements for facilities on a site-
  by-site basis, as would be required by the Clean Air Act if the standards had been vacated.

-------
   All hazardous waste combustors must comply with these interim standards by September 30,
2003. Tables containing details of the emission standards follow. The interim standards apply until
EPA issues "replacement" standards that satisfy the Court. Those standards must be promulgated
by June 14, 2005.

For More  Information
   Information about this regulation is available on the Web at: http://www.epa.gov/
epaoswer/hazwaste/combust/preamble.htm. For additional information call the RCRA Call Center
at 1-800-424-9346 or TDD 1-800-553-7672 (hearing impaired). Callers within the Washington
Metropolitan Area must dial 703-412-9810 or TDD 703-412-3323 (hearing impaired).
               INTERIM STANDARDS FOR EXISTING AND NEW INCINERATORS
Hazardous Air Pollutant or
Hazardous Air Pollutant
Surrogate
Dioxin /Furan
Mercury
Paniculate Matter
Semivolatile Metals
Low Volatile Metals
Hydrochloric Acid/Chlorine Gas
Hydrocarbons
Destruction and Removal
Efficiency
Interim Emission Standard1
Existing Sources
0.20 ng TEQ/dscm; or
0.40 ng TEQ/dscm and temperature at inlet to the
initial paniculate matter control device <400 F
130 ng/dscm
34mg/dscm
(0.015gr/dscf)
240 ng/dscm
97 ng/dscm
77 ppmv
10 ppmv (or 100 ppmv carbon monoxide)
New Sources
0.20 ng TEQ/dscm
45 ng/dscm
34mg/dscm
(0.015gr/dscf)
120 ng/dscm
97 ng/dscm
21 ppmv
10 ppmv (or 100 ppmv
carbon monoxide)
For existing and new sources, 99.99% for each principal organic hazardous
constituent (POHC) designated. For sources burning hazardous wastes F020,
F021, F022, F023, F026, or F027, 99.9999% for each POHC designated.
       All emission levels are corrected to 7 percent oxygen
                                           -2-

-------
         INTERIM STANDARDS FOR EXISTING AND NEW CEMENT KILNS
Hazardous Air Pollutant or
Hazardous Air Pollutant
Surrogate
Dioxin and Furan
Mercury
Paniculate Matter
Semivolatile Metals
Low Volatile Metals
Hydrochloric Acid and
Chlorine Gas
Hydrocarbons: Kilns
without By -pass
Hydrocarbons: Kilns with
By -pass; Main Stack
Hydrocarbons: Kilns with
By -pass; By -pass Duct and
Stack
Destruction and Removal
Efficiency
Interim Emission Standard1
Existing Sources
0.20 ng TEQ/dscm; or
0.40 ng TEQ/dscm and control of flue
gas temperature not to exceed 400 T at
the inlet to the paniculate matter
control device
120 ng/dscm
0.15 kg/Mg dry feed and 20% opacity
330 ng/dscm
56 ng/dscm
130 ppmv
20 ppmv (or 100 ppmv carbon
monoxide)
No main stack standard
10 ppmv (or 100 ppmv carbon
monoxide)
New Sources
0.20 ng TEQ/dscm; or
0.40 ng TEQ/dscm and control of flue
gas temperature not to exceed 400F at
the inlet to the paniculate matter
control device
120 ng/dscm
0. 15 kg/Mg dry feed and 20% opacity
180 ng/dscm
54 ng/dscm
86 ppmv
Greenfield kilns:
20 ppmv (or 100 ppmv carbon
monoxide and 50 ppmv hydrocarbons)
All others:
20 ppmv (or 100 ppmv carbon
monoxide)
50 ppmv
10 ppmv (or 100 ppmv carbon
monoxide)
For existing and new sources, 99.99% for each principal organic hazardous
constituent (POHC) designated. For sources burning hazardous wastes F020,
F021, F022, F023, F026, or F027, 99.9999% for each POHC designated.
All emission levels are corrected to 7% O2, dry basis.
                                      -3-

-------
                   INTERIM STANDARDS FOR EXISTING AND
                    NEW LIGHTWEIGHT AGGREGATE KILNS
Hazardous Air Pollutant or
Hazardous Air Pollutant
Surrogate
Dioxin/Furan
Mercury
Paniculate Matter
Semivolatile Metals
Low Volatile Metals
Hydrochloric Acid/Chlorine
Gas
Hydrocarbons
Destruction and Removal
Efficiency
Interim Emission Standard1
Existing Sources
0.20 ng TEQ/dscm; or rapid quench of
the flue gas at the exit of the kiln to
less than 400T
120 ng/dscm
57 mg/dscm (0.025 gr/dscf)
250 ng/dscm
110 ng/dscm
600 ppmv
20 ppmv
(or 100 ppmv carbon monoxide)
New Sources
0.20 ng TEQ/dscm; or rapid quench of
the flue gas at the exit of the kiln to
less than 400F
120 ng/dscm
57 mg/dscm (0.025 gr/dscf)
43 ng/dscm
110 ng/dscm
600 ppmv
20 ppmv
(or 100 ppmv carbon monoxide)
For existing and new sources, 99.99% for each principal organic hazardous
constituent (POHC) designated. For sources burning hazardous wastes F020,
F021, F022, F023, F026, or F027, 99.9999% for each POHC designated.
All emission levels are corrected to 7% O2, dry basis.
                                     -4-

-------